Vertical lift check valve is rely on the flow of the media itself and automatically open, close the valve, used to prevent the media back to the valve, also known as check valve, check valve, counter valve, and back pressure valve. Check valve is an automatic valve, its main role is to prevent the media back to prevent the pump and drive the motor reversal, and the container media discharge. The check valve can also be used to provide piping where the pressure may rise above the supply of the system pressure. Check valve can be divided into swivel check valve (according to the center of gravity rotation) and lift check valve (along the axis of movement).
Vertical lift check valve is to allow only the medium to flow in one direction, and to prevent the direction of flow. Usually the valve is automatically working, in a direction of the flow of fluid pressure, the valve flap open; fluid flow in the opposite direction, by the fluid pressure and the valve flap from the valve seat in the valve seat, thus cutting the flow. One of the internal thread check valve, butterfly check valve belongs to this type of valve, which includes the swing check valve and lift check valve. The swivel check valve has a hinge mechanism, and a valve-like valve flap free to rest on the inclined seat surface. In order to ensure that the valve flap reaches the proper position of the valve seat each time, the valve flap is designed in the hinge mechanism so that the flap has sufficient swivel space and the flap is truly and fully accessible to the valve seat. The flap can be made entirely of metal, or it can be embedded in metal, leather, rubber, or synthetic coverage, depending on the performance requirements.
Vertical lift check valve in the fully open condition, the fluid pressure is almost unimpeded, so the pressure drop through the valve is relatively small. The flap of the lift check valve is located on the valve seat sealing surface of the valve body. This valve in addition to the valve can be free to lift, the rest as the same as the valve, the fluid pressure so that the valve from the valve seat sealing surface lift, the media back to the valve back to the valve seat, and cut off the flow.
|2017 New Design Vertical Spring Check Valve
|F/F Thread,NPT/BSP/BSPT/DIN Thread
|Water,Oil,Gas and Corrosive Liquid etc
|Inner CTN,Outside ply-wooden case
|30%TT deposit,balance is paid before shipping the goods
|30-45 days after recived 30% deposit
1, the liquid resistance is small, the sealing surface by the medium erosion and erosion of small.
2, opening and closing effort.
3, the media flow is not restricted, no spoiler, do not drop pressure.
4, simple shape, short structure length, manufacturing process is good, for a wide range.
Choose WOD, do not hesitate:
We have the professional design people
Customer's sample is always welcomed
We are manufacturer, specializing in manufacturing stainless steel thread valves for 9 years, competitive price with good quality, the deadline usually is 30-45 days
We can give out sample in 3 days, but the shipment charge usually paid by your side, the fee of it will be rebound when we have formal order.
4.Rapid response to your needs:
We will reply within 24 hours, Welcome to contact with us if you have any problems, We are looking forward to cooperating with you.
1.We offer the non-standard valves, according to customer requirements
2.If you want, you can have your own logo on the products
3.Exported to more than 10 countries in America and Asia
4.We can promise the quality, passed the CE certification
Q:Are you factory or trading company?
We are a factory with more than 9 years experience and sells more than 30 countries.
Q:Are you OEM?
Yes,we are OEM.
Q:If yr company can be customized?
Yes, we can according to customer's drawing or sample.
Q:How to find more information of your company?
Click our company's website www.wodvalve.com or www.sj-valve.net , Welcome to our company!